Percentage calculation is one of the important part in mathematics. Percentage formulas very helpful to all competitive exams as well as in our daily life. In this artical provides different types of formulas for percentage calculation with examples.

Type 1 : General Percent formulas.

Find X is what percent on Y ?

X is what percent greater than Y ?

Find X is what percent lesser than Y ?

Examples for the above percentage formulas

Ex. 1 : 25 is what percent on 40 ?

solution : (25/40) x 100 = 62.5%

Ex. 2 : 25 is what percent less than 40 ?

solution : [(40-25)/40] x 100 = 37.5%

Ex. 3 : 50 is what percent greater than 40 ?

solution : [(50-40)/40] x 100 = 25%

Type 2 : Net change of a number while percentage increase or decrease.

Net change of a number while increased by X% and then again increased by Y%.

Net change of a number while decreased by X% and then again decreased by Y%.

The Net change of a number while increased by X% and then again decreased by Y%.

Net change of a number while decreased by X% and then again increased by Y%.